Planer presser-roll



S. M. RICHARDSON. PLANER PRESSBR ROLL.

(No Model.)

trice..

SENECA M. RICHARDSON, OF VORCESTER, MASSACHUSETTS.

PLANER PRESSER-ROLL.

SPECIFICATION forming part. of Letters Patent No. 313,885, dated March 17, 1885.

Application filed December 17, 18S-l. (No model.)

To all whom it may concern:

Be it known that I, SENECA M. RICHARD- SON, a citizen of the United States, residing at Worcester, inthe county of Vorcester and State of Massachusetts, have invented certain new and useful Improvements in PresserRoll Mechanism for Traveling-Bed Planiug-Machines; and I declare the following to be a description of my said invention, sufficiently full, clear, and exact to enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

The object of my present invention is to provide a practical and convenient presser-roll mechanism for endless traveling-bed planingmachines, and to afford efficient means for independently weighting the several roll-sections, so that either of said roll-sections can be raised without reference tothe others; also, to afford facilities for the self-oiling of the roll-sections, and means for supporting the shaving-hood in connection with the pressersupporting frame.

My invention consists in mechanism constructed and combined for operation substantially as shown and described, the particular subj ect-matter claimed being hereinafter definitely specified.

In the drawings, Figure l is a vertical sectional view at line w fr, showing such parts of a planing-machine as will illustrate the nature ot' my invention. Fig. 2 is a plan view of the mechanism; and Fig. 3 shows transverse and longitudinal sections of the presser-roll and its journal-support, as made for self-oiling. Fig. 4 is asectional view showing one of the adjustable spring-hunters beneath the pressure-levers.

In referring to the drawings, A denotes the endless traveling bed, B indicates the side frames, and G the cutter-head, which parts may be severally constructed and arranged in the usual manner. The mechanism for operating the traveling bed and cutters and the devices for effecting adjustment of the head to or from the bed are not herein shown and described, as such devices form no part of my present invention, although in practice employed in association therewith in the complete operating machine,and the arrangement and operation of such devices as are not shown will be understood as being those of any suitable or ordinary kind of wood-planing machine.

cated in front of the cutters and arranged to.

work through the open center of the bridgeplate D for holding` the lumber G down upon the bed A as it is fed into the machine.

I indicates the vertically-swinging roll-supporters or levers that carry the presser-roll sections F. At one end said levers I are pivoted or fulcrumed on the bridge-plate' or hood-flange, as at d, while their other ends, which extend forward above the plate D, are furnished with weights XV, in the manner indicated. Near their fulcrumed ends said levers I are provided with lateral wings or ear-pieces t', that reach over and pass down at the respective ends of the roll-sections F to give bearing-support for the journals or studson which the rolls revolve. The front flange of the bridge-plate is slotted or provided with lugs e, that extend upward at the sides of the levers I and serve to retain said levers in proper position laterally.

Beneath the levers I, upon the forward part of the plate D', are arranged spring-hunters to counteract the shock of the descending weight and lever when the end of the board is permitted to run out from beneath the roll F, letting the parts drop toward the bed. These bunters are arranged as shown in Fig. 4. A recess is formed in the platecasting D below the guiding-slot and within this recess is placed a spring or india-rubber cushion, r, on which the lever I strikes when dropped down. Beneath the sprngr is a support-plate,P,and a set-screw, s, by means-of which the bunter can be adjusted at higher or lower position, as desired. A recess is formed at the lower side of the plate D for the head of the screw s, so that it will not interfere with the feeding of the boards into themaehine. The several rolls or sections F are each mounted in connection with a separate arm, I, so that'each is weighted independently, and either roll-section can rise and fall without reference to the others, to accommodate variations in stock when several boards of different thickness are simultaneously run through the machine. The rolls F are preferably made as hollow cylinders, the bearing studs or shafts m being arranged to extend through the axis of the roll, with their ends supported in the ears fi, so that the roll revolves about the shaft, which is stationary, although, if desired, the roll could be made with end journals to revolve in the ear-bearings.

To render the parts self-oiling the roll is made with an annular oil-chamber, f, having holes leading to the bearing-surface, as indicated in Fig. 3, a side opening with screwls)topper n being provided for filling the cham- The action of the weight W on the arm I presses the roll down upon the lumber G with a yielding pressure, while the forward movement of the lumber also tendsto increase the pressure by carrying the rolls toward the vertical line of the' fulcrum-pivots; hence a lighter weight, WV, can be used than would otherwise be required. The lever I and roll F can be turned upward, as indicated in dotted lines, Fig. 1, to give aceess'for cleaning or oilin'g when desired. In the present instance four roll-section and-weight devices are shown;

vbut a greater or less number may be employed,

as required, the manner of constructing and arranging the individual devices being the same.

I am aware that presser-rolls in planingmachines have heretofore been made-with two or more roll-sections in the width of the machine to accommodate boards of different thickness,and I do not, therefore, herein make claim to such feature otherwise than as embraced in mechanism constructed and organized for operating as hereinbefore specied.

What I claim as of my invention, and desire to secure by Letters Patent, is-

1. In combination, as hereinbefore described, with the cutter-head and endless traveling bed, the bridge-plate D, having open center and front and rear upright iianges, the series of levers I, severally provided with lateral downwardly-extended ear-pieces ,supporting roll-sections F, hinged to the rear flange, D', as at d, above the rolls, and guided on the front iiange, as at e, and the weights W, for the purposes set forth.

2. In combination, as hereinbefore described, with the cutter-head and traveling bed, the bridge-plate D, having front and rear upright flanges, the series of weighted levers I, severally provided with lateral downwardlyextended ears i, supporting the roll-sections F, hinged to the rea-r iiange,D', as at d, above the roll, the guides e on the front flange, and the cushion-bunters r and adjusting-screws s, located within said front iiange beneath said levers, for the purposes set forth.

3. In combination, as described, with the cutter-head and bridge-plate D, having the upright rear iiange,'D, the shaving-hood E, and the series of levers I, carrying the/presserr'oll sections F, connected with said bridgeplate flange by the same hinge-pivots, as at d, whereby said hood can be turned back upon the levers,or the levers turned up against said hood, as indicated.

4. The levers I,provided near their fulcrum ends with the right and left lateral and downwardly-extended wings z' i, the shaft m, connecting said wings, and the self-oiling roll-section F, revoluble on said shaft, the lever-arm being centrally disposed above said roll, in combination with the bridge-plate and traveling bed, as shown and described.

Witness my hand this 13th day of December,

SENECA M. RICHARDSON.

WVitnesses:

CHAs. H. BURLEIGH, AMAsA BnLLoU. 

